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Sodium metal is cut with a knife a chemical or physical change?
Wiki User
∙ 14y ago
physical
Wiki User
∙ 14y ago
Anonymous
I guess physical change?
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Is cutting a bar of sodium metal with a knife a chemical change?
No it is not.
Why does a piece of sodium metal cut with a knife soon go dull?
have no idea
What is sodium's phase of matter in room temp?
sodium is a solid reactive metal at room temperature What color is sodium at room temperature? it is silver grey with brown touch.
What mineral can be scratched with a steel knife or window glass?
apatite with a steel knife feldspar with window glass
Can a knife cut through talc?
No.
Is cutting a bar of sodium metal with a knife a chemical change?
No it is not.
Why is Metal Knife is sharpened a physical change?
physical- only its appearance has changed.
Is sodium metal that is soft enough to cut with a butter knife a physical or chemical property?
The softness of sodium metal is one of its physicalproperties.
Is a solid breaking up into many pieces a chemical change?
Disintegration can be a chemical change, but it depends on what kind it is. For example, sharpening a knife is a physical change, but burning a piece of wood is a chemical change.
You forgot to dry the bread knife when you washed it and reddish brown spots appeared on it is it physical or chemical?
Both, the reddish spots are rust and a chemical change. You will also find (after you have rubbed off the rust) that the surface of the knife is pitted. These pits are a physical changed caused by the chemical reaction.
Why when a metal knife is sharpened it is called a physical change?
The sharpening of a metal knife blade is most often done in one or both of two ways:Removal of materialPlastic deformationThese both are physical changes. there might be a chemical sharpening but I do not know of it.
Is a slow reaction a chemical reaction?
maybe. Rotting of wood is a slow chemical process. Trying to cut up a tree with a small knife is slow, but that would be a physical change.
Is a silver knife and fork tarnish when they are exposed to air for several weeks a chemical or physical change?
Tarnishing of silver is the same process as rusting of steel . . . they are both chemical processes involving the formation of compounds with oxygen.
If you scratch glass with a steel knife would that be a physical change because it doesn't really change the molecules?
Yes, exactly. If you ever do not know just remember that the basic chemical properties of glass and scratched glass are the same, so it's definitely a physical change. good job!
Which 2 metals that can be cut with a knife?
sodium and potassium are the two metals that can be cut by a knife.
Can alkali metals metals cut with a knife?
Na (Sodium) is an alkali metal that can be cut with a knife.
What are the Physical traits of sodium?
At room temperature, sodium metal is so soft that it can be easily cut with a knife. In air, the bright silvery luster of freshly exposed sodium will rapidly tarnish. The density of alkali metals generally increases with increasing atomic number, but sodium is denser than potassium. Source: http://en.wikipedia.org/wiki/Sodium#Characteristics
